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About product and suppliers:
        Alibaba.com offers 864 round ruler products. About 33% of these are rulers, 13% are tape measures, and 1% are bracelets & bangles. 

A wide variety of round ruler options are available to you, such as plastic, wood, and metal. You can also choose from yes, no. As well as from straight ruler, triangular ruler. And whether round ruler is free samples, or paid samples. 

There are 864 round ruler suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of round ruler respectively. 

Round ruler products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 276 with Other, 203 with ISO9001, and 87 with FSC certification.